๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Estimation of hydrogen peroxide in plant extracts using titanium(IV)

โœ Scribed by Brian D. Patterson; Elspeth A. MacRae; Ian B. Ferguson

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
457 KB
Volume
139
Category
Article
ISSN
0003-2697

No coin nor oath required. For personal study only.

โœฆ Synopsis

Methods for the estimation of hydrogen peroxide in acetone extracts using titanium(IV) are likely to overestimate hydrogen peroxide when applied to plant leaves. Pigments appear to co-precipitate with the titanium complex and cannot be removed by washing with solvents. Fluoride, which specifically removes the color of the titanium-peroxide complex, removes only some of the color from the reactions with plant extracts. This problem has been avoided by extracting tissues with trichloroacetic acid, and measuring peroxide against catalase-treated blanks by its reaction with the complex of titanium(IV) with 4-(2-pyridylazo) resorcinol. Levels of hydrogen peroxide in leaves of a variety of species were found to range from about 0.1 to 0.6 mumol X g-1.

๐Ÿ“œ SIMILAR VOLUMES

The use of soil extractants to estimate
The use of soil extractants to estimate plant-available molybdenum and selenium in potentially toxic soils
โœ Carolyn Williams; I. Thornton ๐Ÿ“‚ Article ๐Ÿ“… 1973 ๐Ÿ› Springer ๐ŸŒ English โš– 460 KB

Uptake of Mo and Se by plants growing on soils with larger than normal concentrations of these elements cannot be predicted from soil content alone. Results of the chemical extraction of Mo and Se from soils in the laboratory have been compared with plant uptake of Mo and Se from the same soils in